The essence of greatness is the perception that virtue is enough.

世界就是所有实际情况。

困难之中孕育着机遇。

最好的采矿项目是那些当地社区成为真正合作伙伴的项目，而不仅仅是利益相关者。

Sustainability isn't an option - it's our responsibility to the next generation.

永不放弃。今天很艰难，明天会更糟，但后天会阳光灿烂。